NARROWING OF THE BEAM DIRECTIVITY OF HIGH -POWER WIDE-CONTACT-STRIPE INJECTION-LASERS BY MEANS OF AN EXTERNAL MICROSELECTOR

Authors
BEZOTOSNYI VV KONYAEV VP MARKOVA NV KHARISOV GG
Citation
Vv. Bezotosnyi et al., NARROWING OF THE BEAM DIRECTIVITY OF HIGH -POWER WIDE-CONTACT-STRIPE INJECTION-LASERS BY MEANS OF AN EXTERNAL MICROSELECTOR, Kvantovaa elektronika, 21(1), 1994, pp. 57-58
Citations number
12
Categorie Soggetti
Physics, Applied","Engineering, Eletrical & Electronic
Journal title
Kvantovaa elektronika → ACNP
ISSN journal
03687147
Volume
21
Issue
1
Year of publication
1994
Pages
57 - 58
Database
ISI
SICI code
0368-7147(1994)21:1<57:NOTBDO>2.0.ZU;2-H
Abstract
Spatial and power characteristics of InGaAs/AlGaAs/GaAs quantum-well h eterolasers emitting at a wavelength of 940 nm were studied. Using an external microselector, we obtained an almost single-lobe directional pattern of the laser with the stripe contact 50 mum wide. The maximum radiation power emitted into the diffraction-limited main lobe of the directional pattern was approximately 185 mW. For a fixed pump current , that power constituted 55% of the total power produced without the s elector.